MICRO POWER STEP-UP DC-DC CONVERTER

AP3015/A

2

Aug. 2006 Rev. 1. 0

BCD Semiconductor Manufacturing Limited

Preliminary Datasheet

Figure 2. Pin Configuration of AP3015/A (Top View)

Pin Description

Pin Number

Pin Name

Function

1

SW

Switch Pin. This is the collector of the internal NPN power switch. Minimize the trace area

connected to this Pin to minimize EMI

2

GND

Ground Pin. GND should be tied directly to ground plane for best performance

3

FB

R2). Keep the loop between Vout and FB as short as possible to minimize the ripple and noise,

which is beneficial to the stability and output ripple

4

SHDN

Shutdown Control Pin. Tie this pin above 0.9V to enable the device. Tie below 0.25V to turn

off the device

Supply Input Pin. Bypass this pin with a capacitor as close to the device as possible

Pin Configuration

K Package

(SOT-23-5)

SW

FB

SHDN

3

2

1

4

5

GND